CN1195368C - Selection of information units for mobile client computers - Google Patents

Selection of information units for mobile client computers Download PDF

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Publication number
CN1195368C
CN1195368C CNB00810509XA CN00810509A CN1195368C CN 1195368 C CN1195368 C CN 1195368C CN B00810509X A CNB00810509X A CN B00810509XA CN 00810509 A CN00810509 A CN 00810509A CN 1195368 C CN1195368 C CN 1195368C
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CN
China
Prior art keywords
information
client computer
information unit
computer
geographical
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Expired - Fee Related
Application number
CNB00810509XA
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Chinese (zh)
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CN1365560A (en
Inventor
安德烈斯·费伯里
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOMBAADER TRANSPORT AG
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BOMBAADER TRANSPORT AG
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Publication of CN1365560A publication Critical patent/CN1365560A/en
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Publication of CN1195368C publication Critical patent/CN1195368C/en
Anticipated expiration legal-status Critical
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/29Geographical information databases
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/04Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/51Discovery or management thereof, e.g. service location protocol [SLP] or web services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/52Network services specially adapted for the location of the user terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]

Abstract

The invention relates to a device, a computer system and a method for the selection of information units for mobile client computers (4) operating in such a way that geographic position information is assigned to individual information units and said position information and the position of the client computer (4) are used in said selection. This makes it possible to restrict the selection of information units to those units pertaining to given geographic areas. Those information units located in the proximity of the position of the client computer (4) can be especially selected. In a preferred embodiment of the invention, Web camera images located in the proximity of the means of transport are represented in a means of transport. In another embodiment, facilities of a given category such as restaurants, car parks, bus stops or movie theaters located in the proximity of the mobile client computer (4) are detected.

Description

Information units for mobile client computers is selected
Technical field
The present invention relates to the communication technology.It relates to a kind of equipment that is used to select the mobile client computer information unit, a kind of department of computer science a kind of method of unifying.
Background technology
For example US 5,659, and 732 disclose a kind of such method.Wherein, the information unit on a communication network can be by the document of internet browsing, by an index that carries out that is called as " search engine " as HTML.If the user uses one or more search word to search for, document can be identified from index.The user can find their address from a listed files that is fit to him, for example, available URL (unified resource position) represents.Because the online document that provides is countless, so the coupling document that finds is often too many.This makes more difficult his needed relevant documentation and the information of finding of user.
Html browser is being installed on the automobile or on the aircraft seat, and the client computer that can show internet information easy to use also is an idea that is widely known by the people.But it exists the above-mentioned too much problem of measuring for information about too.
EP 0 785 535 A1 have described such vehicle guidance system, and this system contains the map of the CD ROM that is stored in client computer, decides its position by the GPS locating information.Cities and towns plat according to user-selected is sent to server with this area's title, and server is again according to the unit of regional information decision as distribution such as entertainment service.Yet this mode can not allow the appropriate information unit be selected automatically, can not have user's participation.
Summary of the invention
Therefore, the objective of the invention is a kind of method of unifying, reducing the amount of information that user search is arrived, and strengthen the correlation of the information that obtains for a kind of equipment, a kind of department of computer science that mobile client computer provides above-mentioned being used to select information unit.
This target is to realize by being used for a kind of equipment, a kind of department of computer science that information unit selects a kind of method of unifying.
Be used to mobile client computer to select the equipment of information unit, comprise a server computer, has the device of selecting information unit by preset standard, wherein, preset standard has geo-localisation information, each information unit is the input variable of choice device corresponding to the geographical position of a geo-localisation information and pairing locating information of each information unit and client computer.
Select the computer system of information for mobile client computer, comprise a server computer, it has the device of selecting information unit by preset standard, also comprise client computer, wherein, preset standard has geo-localisation information, and each information unit can be used for selecting corresponding to the geographical location information of a geo-localisation information and pairing locating information of each information unit and client computer.
Be the method for mobile client computer selection information unit, wherein, each information unit is corresponding to a geo-localisation information, and the geographical position of pairing geo-localisation information of each information unit and client computer all is used for the selection of server computer.
In the methods of the invention, the selection of mobile client computer information unit is performed such, the form of being about to is that the geo-localisation information of geographical longitude and latitude is distributed to each information unit, and considers that when carrying out Information Selection locating information and form are the geographical position of the client computer of geographical longitude and latitude.
By this method, the selection that is restricted to the information unit of a certain specific geographical area just becomes possibility.Particularly, near apart from client computer position information unit can preferentially be chosen.
The selection that a major advantage of this method is an information unit can be limited in the default geographic range, and by this way, a large amount of irrelevant information are screened have been fallen.This has also reduced computer costs, has simplified information processing, transmission and demonstration running.
In a Variant Design of the present invention, client computer is installed on a kind of vehicles such as train, aircraft or the automobile.
In another one Variant Design of the present invention, the position of the client computer that is considered might not be its current position, and it can be the position in a past, also can be the client computer or the vehicles one future expected position.
In a following Variant Design of the present invention, information unit will become network camera or be called the image file that is produced of " webcams ", and can constantly obtain to upgrade.
Other preferred implementation in the dependent claims.
Description of drawings
Describe the present invention in detail below with reference to preferred implementation shown in the drawings.In the drawings:
The sketch of employed communication linkage of Fig. 1 the inventive method and part.
Fig. 2 selected information unit figure of a Variant Design of the present invention and
The part of Fig. 3 Voronoi chart.
Reference number that uses among the figure and their implication are listed in list of reference numerals.Same in the drawings part is endowed same reference number.
Embodiment
Fig. 1 represents the part that inventive method is preferably used and the sketch of link.These links should be regarded as bi-directional communication links.In Fig. 1, multiple information source, just 2, one in information unit source or multiple servers computer abbreviate 3, one of servers as or many client computers abbreviate client computer 4 as, are linked together by a communication network 1.Client computer 4 has a computing unit, a display device and a communication unit, is used for communicating with communication network 1.Client computer 4 preferably is useful on the device of determining the geographical position and is used for device by user's input information.One or more first client computer 4 are connected on the communication network 1 by the standard interface 5 of a communication network 1.One or more second client computer 4 ' link to each other with a coupling unit 7 by a particular interface 6, coupling unit 7 then links to each other with communication network 1 successively.One or more the 3rd client computer 4 " not by communication network 1, but link to each other with server 3 by particular interface 6.Other the 4th client computer 4 link to each other with a shared acting server 8 of the vehicles 9, and acting server 8 links to each other with communication network 1.
The technology modification that can be used to implement aforementioned invention key element has a variety of.For example, communication network 1 can be the internet based on ICP/IP protocol, perhaps based on the World Wide Web (WWW) of internet.And for example information unit source 2 can be the file of html format or other form that comes from HTML, perhaps image file, and they can obtain by communication network 1.Client computer 4 is portable, as being a PDA (personal digital aid (PDA)) or a mobile phone that has web browser, perhaps can be installed on a kind of vehicles, in automobile, train, bicycle, aircraft, airship, ship or submarine.Client computer 4 is used browse software can be fully and html compliant, perhaps can be used instead in efficient display image or text message.Standard interface 5 is preferably TCP/IP (TCP) link.For example it can be realized pellucidly to telephone network or radio transmission apparatus.Particular interface 6 can be for example privacy communication's network or non-standard communication agreement or private interface.
Below the useful modification of two the present invention of explanation is implemented.The common ground of two kinds of modification is server 3 acquisition of informations from a plurality of information sources 2, and each information source 2 is respectively distributed a geo-localisation information.For instance, this distributes by extracting and has been present in an information source significantly or has been present in a geo-localisation information in this information source text implicitly, by analyzing an IP address relevant with information source or carrying out by user's manual operation.
The proposal that how to obtain the clear and definite information in geographical position about the information unit on the internet can be found in " w3c ProposedRecommendation 03, the March 1999 " literary composition under Dan Brickley and R.V.Guha " Resource Description Framework (RDF) Schema Specification " bibliography.Can Http:// www.w3.org/ TR/PR-rdf-schemaFind the document in the website.
In first favourable modification of the present invention, the present invention is used to the passenger on public transport such as railway, bus, long-distance bus or the aircraft that information and amusement are provided.Here the passenger can obtain the image of relevant traffic route by the demonstration of a group client 4.For instance, these images are provided and are brought in constant renewal in by the equipment that is known as network camera or " webcams " as information source 2.For reaching this purpose, client computer 4 is regularly got in touch with server 3, sends inquiry to server 3, and sends to it that the vehicles are gone over, current and following position.This position, just the geographical position of these vehicles can be located by GPS (global positioning system) receiver.In the example of railway traffic, signal and route data also can be used to determine the position, and in the example of aircraft, suitable aeronautical data also can be used to reach this purpose.
First kind of inquiry form is to require apart from the nearest network camera of the vehicles.Server 3 or to reference of client computer 4 transmission or address then, URL (unified resource position) address as a network camera, so client computer 4 is from network camera Load Images data, perhaps server oneself is sent to client computer 4 from network camera Load Images data and with it.In two examples, if whether server check image data change after the last time inquiry, this is of great use, thus, just there is no need data to be sent to client computer 4.Inquiry regularly can show the new images that obtains from same network camera, if perhaps another network camera of vehicles forward is advanced then shown the image that gets from another network camera.If a plurality of or whole passengers are at the image of watching client computer 4 to show, then the inquiry of first kind of form is favourable.View data not only comprises vivid information, and comprises for example information such as size, the record moment or explanation of image.
Second kind of inquiry form is all network cameras in the rectangular area preferably around the requirement vehicles.For instance, this is distinguished by the width in the geographic logitude at its center and latitude and this district and highly comes to determine, for example is unit with the kilometer.Server 3 address, their geographical position such as geographic logitude and latitude and the image 22 that dwindles that just all are positioned at the network camera in this district passed to client 4 from the related network camera then, as the reference of information source 2.Client computer 4 to ground Figure 21 of surrounding area, and shows with image result these image overlay of dwindling on client computer 4 display devices.Fig. 2 has shown a such example.The image 22 that dwindles is by advantageously hyperlink, and just, they have a reference data of distributing to them.For instance, this benchmark address of a network camera.The user can see that he has been exaggerated by selected image from this figure.He can select by for example clicking an image that dwindles 22, and this image 22 can have an image input unit, and the tactile surface that perhaps taps on the display is selected.The image of selecting is loaded from network camera by client computer 4, perhaps server 3 Load Images data and send it to client computer 4 from the network camera.Second kind of inquiry form helps such situation, and promptly every client computer 4 is assigned to passenger individual.Acting server 8 preferably is housed on the vehicles.It stores all answers to the inquiry of server 4 on a circulating memory, like this, the relevant image and the address that are required by a plurality of passengers only need to transmit once to these vehicles.
By compressing image data, if transmit interface 5 and 6 enough bandwidth are arranged, then it not only can transmit rest image, and can transmit video image.
Server 3 is being kept the data structure that can allow client computer 4 efficiently to be answered:
Under first kind of inquiry form,, can use the Voronoi table for determining the position of the network camera of the close vehicles.Fig. 3 is the part of a two-dimentional Voronoi table.In two-dimentional Voronoi table, a plane that comprises several specified points 31 is divided into several zones 32, and subregion is taked a kind of like this mode, promptly in zone arbitrarily a bit and the distance between the specified point 31 nearer than the distance of other any specified point 31.In present invention, the position of network camera has constituted specified point 31.It is found by client computer 4 locas in client computer 4 zones, and like this, it also is nearest network camera.
Use the Voronoi chart need use related data structure search especially.The latter is the acyclic guiding figure of 0 regular high daily record (log n) normally, and at this, n represents the size of Voronoi chart, the number of specified point just, and be constant from the maximum number of the branch that each node is dispersed in the drawings.Just might in logarithmic time, from the Voronoi chart, find thus the relevant range coordinate (x, some y), thereby also just might find nearest specified point.Searching structure also is used to increase new node or delete them especially.The both causes the variation of Voronoi chart and searching structure, but whole cost is wanted much less than all redefining.
For second kind of inquiry form,, use two-dimensional arrangements tree (being designated hereinafter simply as english abbreviation " RT ") for determining to be positioned at all points in a specific planar rectangular zone.(x, y) RT has the RT of one first coordinate (x) to a two-dimensional localization two coordinate, and each node of the non-subtree among the RT has second coordinate (y) of points all in the node subtree.A two-dimentional RT who is used for several points in the euclidean plane is a data structure of support window inquiry effectively.A window queries means and is positioned at a tabulation at the specific rectangular point of a part, plane that the outline line on this plane is parallel with its axle.The efficient many logarithms cost (polylogarithmic cost) that means, just, sequence o ((log n) c) cost, n represents quantity a little here, c is a constant.RT with static state or half dynamic structure implement.Under the situation of static structure, all points had all just been known before structure is calculated.Under the situation of half dynamic structure, point can carry out addition effectively, and in dynamic structure, point can carry out addition effectively and delete.
These data structures, just Voronoi chart or two-dimentional RT constantly obtain to upgrade by the mode of accepting new available network camera or reducing disabled network camera, so just can guarantee the optimal availability of the data that obtain.Since the quantity of network camera can be appreciable, these action needs carry out efficiently, for example, can maintain on many logarithms cost.
To from a large amount of and the continuous URL that changes of quantity, find network camera to move automatically by the check image environment, these images are comprised in the webpage that for example has " webcam " or " camera " printed words, find cyclic variation by check image simultaneously.This process is found out a cover may interested network camera.When network camera was included in the data structure of server 3, geo-localisation information was decided by the data that the computer of network camera or supervising the network camera clearly provides, and is perhaps added up by the operator.Such operator also checks from the quality of a particular network camera gained image.
Different with traditional aircraft or the demonstration on the train, first kind of modification of the present invention provides a kind of more senior information or entertainment service.With what proposed by the passenger is that at random internet inquiry is compared fully, and the information loads of the communication interface between the vehicles 9 and the communication network 1 is much smaller.
In second kind of favourable modification of the present invention, the present invention can be used for providing information for the user of car occupant or portable client 4.In this case, define the relevant information of classification with vehicle position and user and can be shown to the user by client computer 4 display devices.By equipment of the present invention, the user just can find nearest pizzeria.
For reaching this purpose, this inventive method operating principle is as follows: server 3 transmits a large amount of classifications to server 4, and the mobile subscriber might be interested in these classifications.These classifications are specified as facilities such as restaurant, parking lot, bus stop, cinema, playground, police office or public lavatories.Client computer 4 demonstrates these classifications at its display device, and on display device, the user can select a categories of interest by a kind of input equipment.Send, show and select classification as far as possible by the user by selecting one to contain more the problem of particular range and set the interest that defines him, thereby realize preferred.Server decides next the selection according to the user of being transmitted by client computer 4 answer in this case.Client computer 4 is also transmitted the information of relevant geographical position or client computer 4 positions.The site is determined by the gps system that is installed in client computer 4 (global positioning system) receiver.
A series of categories of interest screen by said method, and server is sought geographically the suitable facility near client computer 4.For reaching this purpose, server 3 can be sought a nearest facility, and the facility of perhaps nearest predetermined number perhaps is several facilities of certain predeterminable range apart from client computer 4.For reaching this purpose, server 3 is being safeguarded a facilities database, is also comprising the geographical location information of facility.The geographical location information that for example can comprise each facility in this database is about the data set of the reference information of the brief description of facility or keyword and these facility details.This reference information is a useful network address, and a URL is then more favourable in this way.Database can according to the information of the relevant facilities of webpage or other automatically, part is artificial or produced by the artificially fully.As long as webpage can not provide geo-localisation information, then be necessary to carry out the artificial collection of a part.It will be finished by a specialized information service, and will be by affected facility subsidy and/or by solving financing to the user's query charge.
The Short Description of one or more facility that server 3 will find and hyperlink send client computer 4 together to, and the facilities information that client computer 4 will directly find by these hyperlinks is elected.This information can be relevant with price, timetable, plan, menu, wine list, remaining seat or facility standard.In another one modification of the present invention, default with information-related choice criteria by the user, even can when facility is just sought, take into account.In the process of seeking the restaurant, the user can preset such standard, for example looks for the desk that can sit ten people.If found such restaurant, then this desk just can be subscribed out by the website in restaurant, and arranges grape wine is iced in advance.If the user is ready that server 3 just transmits the region figure on every side in client computer 4 selected restaurants to client 4.
List of reference numerals
1 communication network: nw
2 information unit source: src
3 servers: srv
4,4 ', 4 ", 4 client computer: cl
5 communication network standards interfaces
6 special interfaces
7 coupling units: cu
8 acting servers: ps
9 vehicles
10 maps
22 images that dwindle
31 specified points
32 zones

Claims (21)

1. be used to mobile client computer (4) to select the equipment of information unit, comprise a server computer (3), have the device of selecting information unit by preset standard,
Wherein preset standard has the geo-localisation information of geographical longitude and latitude form,
It is characterized in that,
Each information unit corresponding to the geo-localisation information of a geographical longitude and latitude form and
The geographical position of the geographical longitude and latitude form of pairing locating information of each information unit and client computer (4) is the input variable of choice device.
2. the equipment of claim 1 is characterized in that, server computer (3) has the data structure that is used for determining the information unit nearest apart from the position of client computer (4).
3. the equipment of claim 2 is characterized in that, data structure constitutes the Voronoi chart.
4. the equipment of claim 2 is characterized in that, data structure constitutes a two-dimensional arrangements tree.
5. the equipment of claim 1 is characterized in that, information unit comprises the image from network camera.
6. the equipment of claim 1 is characterized in that, information unit can be transferred to client computer (4), and includes view data.
7. the equipment of claim 1 is characterized in that, the used position of client computer (4) is current, the past an or following expected client computer (4) position.
8. the equipment of claim 1 is characterized in that, information unit has the reference information of information source (2).
9. be the computer system that mobile client computer (4) is selected information unit, comprise a server computer (3), it has the device of selecting information unit by preset standard, also comprise client computer (4), wherein preset standard has the geo-localisation information of geographical longitude and latitude form, it is characterized in that
Each information unit corresponding to the geo-localisation information of a geographical longitude and latitude form and
The geographical location information of the geographical longitude and latitude form of pairing locating information of each information unit and client computer (4) is used for selecting.
10. the computer system of claim 9 is characterized in that, client computer (4) tool really determines the device in its geographical position.
11. the computer system of claim 9 is characterized in that, client computer (4) is installed on a kind of vehicles (9).
12. the computer system of claim 11 is characterized in that, its vehicles (9) are train, aircraft, automobile, ship, bicycle, airship or submarine.
13. the computer system of claim 9 is characterized in that, the vehicles (9) have an Agent Computer (8).
14. the computer system of claim 9 is characterized in that, server computer (3) connects together by a communication network (1) with client computer (4), and client computer (4) is furnished with a wireless communication link and receives communication network (1).
15. be the method that mobile client computer (4) is selected information unit, it is characterized in that, each information unit is corresponding to the geo-localisation information of a geographical longitude and latitude form, and the geographical position of the geographical longitude and latitude form of pairing geo-localisation information of each information unit and client computer (4) all is used for the selection of server computer (3).
16. the method for claim 15 is characterized in that, the position of client computer (4) is the position of current, the past an or following expected client computer (4).
17. the method for claim 15 is characterized in that, the geo-localisation information of each information unit distributes a geographical position for this information unit, selects the information unit of decision predetermined number, and the distribution locations of these information units is nearest apart from client computer (4).
18. the method for claim 15 is characterized in that, the geo-localisation information of each information unit distributes a geographical position for this information unit, selects to decide those information units, and its distribution locations is near the position of client computer (4).
19. the method for claim 15 is characterized in that, server computer (3) is by determining its category of interest with exchanging of user, and with the information unit of selectional restriction in represented category of interest.
20. the method for claim 15 is characterized in that, server computer (3) sends selection result to client computer (4), and client computer (4) is shown to the result on its display device.
21. the method for claim 15 is characterized in that information unit is comprising view data, data are collected by network camera.
CNB00810509XA 1999-06-14 2000-06-09 Selection of information units for mobile client computers Expired - Fee Related CN1195368C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP99810524A EP1061712B1 (en) 1999-06-14 1999-06-14 Device and method for selecting information for mobile clients
EP99810524.1 1999-06-14

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CN1365560A CN1365560A (en) 2002-08-21
CN1195368C true CN1195368C (en) 2005-03-30

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CN (1) CN1195368C (en)
DE (1) DE59914558D1 (en)
WO (1) WO2000078007A1 (en)
ZA (1) ZA200110278B (en)

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WO2000078007A1 (en) 2000-12-21
ZA200110278B (en) 2003-07-29
EP1061712A1 (en) 2000-12-20
DE59914558D1 (en) 2008-01-03
CN1365560A (en) 2002-08-21

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